Ultrasonic Flow Switch Mounting for Stable Pipe Positioning

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Solution Overview

Problem

Existing ultrasonic flow switches face challenges in accurately determining the position of the ultrasonic wave emitting surface on pipes with diameters larger than the distance between sleigh-like blades, leading to difficulties in adjusting sensitivity and potential damage from excessive fastening force, and they struggle to be stably mounted on pipes of various sizes.

Innovation Solution

An ultrasonic flow switch design featuring a configuration with a first and second ultrasonic wave element, a calculation part, an output part, an element holder, a mounting member, and a fixing member, allowing for independent adjustment of the element holder's position in the radial direction while restricting displacement in the axial and circumferential directions, enabling stable mounting on pipes of various sizes without excessive force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the sensor is fastened by a fastening band with excessively large strength to stabilize the position of the ultrasonic wave emitting surface, then the position stability is improved, but the ultrasonic wave emitting surface may be damaged

Engineering Contradiction:
Improveposition stability of ultrasonic wave emitting surfaceVSAvoiddamage to ultrasonic wave emitting surface
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The mounting structure is divided into separate functional components: a mounting member that provides mechanical support and position stabilization, and a fastening member that applies controlled clamping force. This segmentation allows the mounting member to stabilize the ultrasonic wave emitting surface position without requiring excessive fastening force that could cause damage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fastening mechanism uses adjustable fastening members (such as screws or clamps) that allow precise control of the clamping force applied to the sensor. This enables the operator to apply just enough force to stabilize the sensor position while avoiding excessive force that could damage the delicate ultrasonic wave emitting surface.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the sensor is mounted on pipes having various outer diameters, then the adaptability is improved, but the positioning accuracy of the ultrasonic wave emitting surface deteriorates

Engineering Contradiction:
Improvemounting adaptability to various pipe diametersVSAvoidpositioning accuracy of ultrasonic wave emitting surface
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The mounting member is designed with a universal structure that can accommodate pipes of various outer diameters. It includes adjustable components such as movable clamping arms or expandable structures that can be configured to fit different pipe sizes while maintaining consistent positioning of the sensor relative to the pipe surface.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The mounting structure incorporates dynamic adjustment capabilities, allowing the operator to adjust the mounting member's configuration to match the specific pipe diameter being measured. This dynamic adaptability ensures that the ultrasonic wave emitting surface is positioned accurately regardless of the pipe size, as the mounting can be optimized for each specific application.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the position of the ultrasonic wave emitting surface is not accurately determined, then the adaptability to various pipe sizes is improved, but the sensitivity adjustment capability deteriorates

Engineering Contradiction:
Improvemounting adaptability to various pipe sizesVSAvoidsensitivity adjustment capability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The mounting member is designed to preliminarily position the sensor at a predetermined optimal location on the pipe surface before fine-tuning is performed. This preliminary positioning ensures that the ultrasonic wave emitting surface is initially placed in the correct region, making subsequent sensitivity adjustments easier and more effective while maintaining adaptability to various pipe sizes.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This configuration allows for accurate determination of the ultrasonic wave emitting surface position, easy adjustment of sensitivity, and stable mounting on pipes with different diameters, preventing damage and ensuring reliable operation.

Implementation Method 1

a first ultrasonic wave element which performs, out of transmission of an ultrasonic wave to the fluid which flows in the pipe and reception of the ultrasonic wave from the fluid which flows in the pipe, at least the transmission of the ultrasonic wave

Methodology Applied
Scientific EffectUltrasonic wave transmission: Ultrasound

Implementation Method 2

a second ultrasonic wave element which performs, out of transmission of an ultrasonic wave to the fluid which flows in the pipe and reception of the ultrasonic wave from the fluid which flows in the pipe, at least the reception of the ultrasonic wave

Methodology Applied
Scientific EffectUltrasonic wave reception: Ultrasound

Data Source

PatentUS9671263B2Ultrasonic flow switch
Publication Date: 2017.06.06 KEYENCE CORP
  • US9671263B2 patent drawing
  • US9671263B2 patent drawing
  • US9671263B2 patent drawing

AI summary

Provided is an ultrasonic flow switch which can be stably mounted on pipe. A clamp part is mounted on an outer surface of the pipe. A casing part which integrally or independently holds the first and second ultrasonic wave elements is fixed to the clamp part by a sensor fixing screw. The clamp part is configured to restrict displacement of the casing part in an axial direction of the pipe and in a circumferential direction of the pipe and to allow displacement of the casing part in a radial direction of the pipe in a state where the casing part is not fixed.